Time-Frequency Encyclopedia

Focus on time and frequency, precise and stable.

24

2020

-

06

Zhongxin Chuangwei provides an NTP time server for Zhejiang Rural Credit Union.

 

 

Recently, Zhejiang Rural Credit Union issued a requirements specification for a clock synchronization system. Beijing Zhongxin Chuang promptly collaborated to develop a detailed solution and recommended its self‑developed and manufactured DNTS‑9 time server as the bid‑winning product. Following a highly competitive bidding process, Zhongxin Chuang stood out thanks to its high‑quality products and comprehensive after‑sales service, ultimately securing the contract for Zhejiang Rural Credit Union’s clock synchronization system project.

Zhejiang Provincial Rural Credit Cooperatives were established in 1952. Over the years, they underwent various historical phases, including administration under the People’s Communes and trusteeship by the State Bank. In 1996, they were decoupled from the Agricultural Bank of China and placed under the supervision of the People’s Bank of China and the China Banking Regulatory Commission. In June 2003, the State Council’s “Pilot Plan for Deepening the Reform of Rural Credit Cooperatives” (Document No. 15 [2003] issued by the State Council) assigned responsibility for the management of credit cooperatives to the provincial governments, stipulating that provincial authorities should not delegate such management powers to prefectural (city), county, or township governments.

Zhejiang Rural Credit Union’s independently developed by Zhongxin Chuang DNTS-9 Type clock The servers underwent thorough testing, and the results consistently exceeded the specified performance requirements. Furthermore, our company expressed high satisfaction with both the product quality and after-sales service, leading to a smooth procurement and successful deployment.

  

       

 

 

 

    

  The DNTS-9 network time server, developed by Beijing Zhongxinchuang Technology Co., Ltd., is an intelligent, high-precision NTP network time server. The DNTS-9 obtains standard time information from navigation and positioning satellite systems such as GPS, BeiDou, GLONASS, and Galileo, and provides standard time services over the network via NTP/SNTP or other network protocols. Devices in the network that require time synchronization—such as personal computers, servers, and controllers—can synchronize with international standard time.

  Network protocol

NTP v1.v2.v3&v4(RFC1119&1305) SNTP(RFC2030) Authentication (RFC1321) Telnet (RFC854) UDP NTP Unicast, Broadcast, Multicast, Autokey TIME (RFC868) FTP (RFC959) DAYTIME (RFC867) DHCP (RFC2131)

HTTP/SSL/HTTPS (RFC2616) SSH/SCP (Internet Draft) SNMP v1, v2c, and v3, MIB II (RFC1213), RSA asymmetric encryption, MD5 authentication, SHA authentication, AES encryption, DES encryption, RC4 encryption

IPV4 , IPv6, IPv4/IPv6 Hybrid

Timekeeping mode

Supports NTP Peer Client/Server, Broadcast, and Multicast

Server performance

GNSS Reference mode, primary network time server, internal synchronization accuracy of 20 ns.

User terminal synchronization timing accuracy: 0.1–2 ms (typical value on a local area network)

User capacity: Supports tens of thousands of clients.

NTP Request rate: 25,000 requests per second (per network port)

It can be used as a client to synchronize with other NTP network time servers.

Supports logging up to 100,000 entries and allows storage capacity to be expanded as needed.

Receiver

72 Channel‑based timing GNSS receiver, multi‑constellation GPS/BeiDou/GLONASS, supports RAIM, CDMA optional.

UTC Synchronization accuracy: 20 ns (RMS)

Tracking and lock‑on sensitivity can reach −166 dBm.

Timekeeping function

Temperature‑compensated crystal oscillator (optional, depending on model): Timing accuracy: standard configuration优于8.6 µs/day (configurable upgrades available to meet specific requirements).

Rubidium atomic clock (optional depending on model): Timing accuracy: standard configuration better than 500 ns/day (configurable upgrades available to meet specific requirements).

Front panel

VFD High-brightness LCD screen

Displays GPS/BD satellite acquisition status, time, number of GPS/BD satellites, IP addresses of each network port, system operating status, and more.

6 Three-color indicator lights: PWR, ANT, SAT, LOCK, NTP, ALARM

Signals indicating power, antenna, satellite, lock, timing, and alarms.

Rear panel

GNSS Antenna input: BNC, with options for channels 1 and 2.

NTP Network ports: 1–10 ports, with optional 10/100/1000 Mbps or 10 Gigabit Ethernet interfaces.

Console-RS232 Route 1

USB Interfaces: 1–8 channels optional, supports USB 2.0/3.0, with backup, restore, and upgrade functions.

TOD : DB-91 bus, RS232/RS485 levels, capable of outputting information such as time, position, and the number of satellites.

ALARM Dry‑contact alarms: 1–6 pairs optional, including satellite, power, antenna, port capacity, and other alarm types.

10M Output: BNC, 1 channel, selectable sine wave or square wave, impedance: 50 ohms; frequency accuracy: <1E-12

1PPS Output: BNC, TTL level, accuracy ≤10 ns (RMS)

Dimensions: 1U/2U chassis

Physical Environment Parameters

Power Supply: AC 220V ±20%, 47 Hz to 63 Hz; hot-swappable redundant power supplies available as an option.

Operating temperature: -10°C to +55°C (equipment), -40°C to +75°C (antenna)

Storage temperature: -45°C to +85°C

Humidity: 95% non-condensing

 

 

 

 

 

\* MERGEFORMAT

 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

With 18 years of industry experience, our company has established a strong corporate reputation and brand image, serving clients in the financial sector, including:

The People’s Bank of China, China Construction Bank, China Merchants Bank, CITIC Bank, Shanghai Pudong Development Bank, Jiangsu Bank, Hubei Rural Credit Union, Postal Savings Bank of China, Bank of China Beijing Branch, Bank of China Xi’an Branch, Bank of Changsha Co., Ltd., Baoshang Bank Co., Ltd., Chongqing Fumin Bank, China UnionPay Center in Shanghai, Taizhou Commercial Bank Co., Ltd., China Southern Asset Management Co., Ltd., Dubang Property Insurance Co., Ltd., Xinhua Life Insurance, Zhejiang Pinghu Rural Cooperative Bank, Huarong Xiangjiang Bank, Nanxun Rural Cooperative Bank, Deqing Rural Cooperative Bank, Huzhou Wuxing Rural Cooperative Bank, Liaoning Provincial Rural Credit Cooperatives, Beijing Rural Credit Cooperatives, Rural Credit Union Funds Clearing Center, Zhejiang Provincial Credit Union Federation, Guangxi Rural Credit Cooperatives, Jiaxing Hecheng Commercial Bank, Zhejiang Provincial Rural Credit Cooperatives, Yunnan Longchuan Rural Commercial Bank Co., Ltd., and others.

 

The choice of numerous departments and enterprises reflects recognition of Zhongxin Chuang’s products and services. By working in close collaboration with partners across all sectors, we are jointly advancing toward win-win outcomes for businesses and society alike.